GOST (block cipher)
SOVIET/RUSSIAN NATIONAL STANDARD BLOCK CIPHER
GOST 28147-89; GOST block cipher; GOST89
The GOST block cipher (Magma), defined in the standard GOST 28147-89 (RFC 5830), is a Soviet and Russian government standard symmetric key block cipher with a block size of 64 bits. The original standard, published in 1989, did not give the cipher any name, but the most recent revision of the standard, GOST R 34.